Docs: fix typo (#24230)

just fix a small typo

docs/api/en/renderers/WebGLRenderTarget.html

@@ -25,7 +25,7 @@
 		<p>
 		[page:Float width] - The width of the renderTarget. <br />
 		[page:Float height] - The height of the renderTarget.<br />
-		options - (optional object that holds texture parameters for an auto-generated target
+		options - optional object that holds texture parameters for an auto-generated target
 		texture and depthBuffer/stencilBuffer booleans.
 
 		For an explanation of the texture parameters see [page:Texture Texture]. The following are